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geoMusings by Bill Dollins

A geospatial career journey

Tag: PostgreSQL

A FOSS4GNA Savasana

I flew home from St. Louis yesterday, returning from the FOSS4G North America conference. I took a different approach to the conference this year than I did in 2023. Rather than moderate sessions and participate in a lot of on-site logistics, I sat in on more sessions so I got to see a lot more … Continue reading A FOSS4GNA Savasana →

Bill Dollins gis 2024-09-132024-09-13 8 Minutes

Producing GeoJSON with SQL

A couple of weeks ago, I had a need to return GeoJSON from PostGIS. This is something I've done many times, but I usually do the final formatting in the application/API layer with Javascript or Python. Basically, my workflow has been to SELECT, using the built-in ST_AsGeoJSON function to convert the geometry to GeoJSON. I … Continue reading Producing GeoJSON with SQL →

Bill Dollins gis 2024-06-04 4 Minutes

Using pg_webhooks with n8n – A Simple Example

I've been integrating pg_webhooks into some project work lately. Conversely, I have not been using n8n much, but a vendor rep used it in a demo of some workflow automation capabilities for a platform one of my customers is using. I had dabbled with it about two years ago but haven't done much with it … Continue reading Using pg_webhooks with n8n – A Simple Example →

Bill Dollins gis 2023-12-142023-12-22 6 Minutes

Window Functions and PostGIS

FOSS4G North America was an opportunity for me to reconnect with both community and technology. I enjoyed being able to both learn new things and refresh my skills with technologies such as PostGIS. I was reflecting on how, a couple weeks prior to the conference, I introduced the concept of PostgreSQL window functions to a … Continue reading Window Functions and PostGIS →

Bill Dollins gis, postgis, postgresql 2023-11-062023-12-22 4 Minutes

A Few Updates to pg_webhooks

At the time of my last post, there were a few outstanding issues that I wanted to address in the code of pg_webhooks. I've addressed three of them this week. There wasn't actually a route to unsubscribe from a channel, so I added that shortly after the initial release. Another key shortcoming was that the … Continue reading A Few Updates to pg_webhooks →

Bill Dollins gis, open source, postgis, Uncategorized 2023-07-192023-12-22 1 Minute

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